669623

Information

• Patent Grant
• 669623

• References
• Source

• Patent Number

  669,623

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1901
  123 years ago

• CPC

  • B23G1/12 - Machines with a toothed cutter in the shape of a spur-gear of the like which is rotated to generate the thread profile as the work rotates

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus